Do you want to compare Captain Atom with Onslaught? Discover the powers, weakness & weapons of Captain Atom and Onslaught from Captain Atom Biography and Onslaught Biography. Find out all about Captain Atom and Onslaught.# Check out how is Captain Atom unique and distinct from Onslaught. Discover their love interest, sidekicks, family tree and the movies and games list in which Captain Atom and Onslaught have appeared. Find out everything about them here!